# 22 Free Browser-Based Developer Tools — No Backend, No Tracking

I built 22 developer tools that run entirely in your browser. No server-side processing, no tracking, no accounts.

[DevTools.run](https://devtools-site-delta.vercel.app)

## The Tools

**Text & Data:** JSON Formatter, Base64 Encoder, URL Encoder, YAML/JSON Converter, Text Diff

**Security:** Hash Generator (MD5/SHA), JWT Decoder, Password Generator, UUID Generator

**Developer:** Regex Tester, SQL Formatter, Cron Parser, Unix Permissions, Markdown Preview

**Utilities:** Timestamp Converter, Color Converter, Lorem Ipsum, QR Code Generator, Aspect Ratio Calculator

**Solana:** SOL/USD Calculator, Token Lookup, Wallet Checker

## Tech Stack

- Next.js 14 App Router
- Tailwind CSS
- Web Crypto API for hashing
- Canvas API for QR codes
- Zero external dependencies for core tools

Open source: [GitHub](https://github.com/TateLyman/devtools-run)

## Also Check Out

- [Solana Trading Bot](https://t.me/solscanitbot) — free on Telegram
- [Bot Source Code](https://devtools-site-delta.vercel.app/sol-bot-source) — 4,100 lines